Home / 514,761,395.20-771,495,838.39-278,401,495

Finding the Fourth Proportional to 514,761,395.20, 771,495,838.39 and 278,401,495

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Solution

The fourth proportional to 514,761,395.20, 771,495,838.39 and 278,401,495 is: 417,252,724.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,761,395.20 : 771,495,838.39 = 278,401,495 : x
  2. Step 2: Convert to fraction form
    514,761,395.20/771,495,838.39 = 278,401,495/x
  3. Step 3: Cross multiply
    514,761,395.20x = 771,495,838.39 × 278,401,495
  4. Step 4: Simplify right side
    514,761,395.20x = 214,785,594,794,054,400
  5. Step 5: Solve for x
    x = 214,785,594,794,054,400/514,761,395.20
  6. Step 6: Final answer
    x = 417,252,724.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.